Nagios VS PRTG Network Monitor
As of 30 October 2026, PRTG Network Monitor is named by 244 companies and Nagios by 460; Nagios skews to companies under 200 people (48% vs 36%), PRTG Network Monitor to companies over 1,000 (33% vs 29%).
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: Nagios's script and mail records show on hundreds of thousands of small sites, PRTG Network Monitor rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Nagios: 2–200 employees
- 48%
- PRTG Network Monitor: 2–200 employees
- 36%
- Nagios: 1,000+ employees
- 29%
- PRTG Network Monitor: 1,000+ employees
- 33%
- Postings per company, 90 days
- 2.5 · 2.0
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | Nagios | share | PRTG Network Monitor | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 2 | 0% | 1 | 0% | even |
| 2-10 employees | 18 | 4% | 13 | 5% | even |
| 11-50 employees | 90 | 20% | 26 | 11% | Nagios |
| 51-200 employees | 112 | 24% | 49 | 20% | Nagios |
| 201-500 employees | 65 | 14% | 46 | 19% | PRTG Network Monitor |
| 501-1000 employees | 41 | 9% | 28 | 11% | PRTG Network Monitor |
| 1001-5000 employees | 72 | 16% | 50 | 20% | PRTG Network Monitor |
| 5001-10000 employees | 18 | 4% | 12 | 5% | even |
| 10,001+ employees | 42 | 9% | 19 | 8% | even |
| Segment | Nagios | share | PRTG Network Monitor | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 266 | 58% | 93 | 38% | Nagios |
| Business & finance services | 74 | 16% | 40 | 16% | even |
| Manufacturing & industry | 33 | 7% | 43 | 18% | PRTG Network Monitor |
| Utilities & infrastructure | 23 | 5% | 16 | 7% | even |
| Public, community & associations | 12 | 3% | 5 | 2% | even |
| Commerce & trade | 11 | 2% | 5 | 2% | even |
| Consumer services & leisure | 11 | 2% | 4 | 2% | even |
| Property & construction | 8 | 2% | 6 | 2% | even |
| Health care | 6 | 1% | 15 | 6% | PRTG Network Monitor |
| Media & content | 6 | 1% | 5 | 2% | even |
| Transport, logistics & rental | 5 | 1% | 5 | 2% | even |
| Automotive | 3 | 1% | 5 | 2% | even |
| Segment | Nagios | share | PRTG Network Monitor | share | Leans |
|---|---|---|---|---|---|
| United States | 253 | 55% | 117 | 48% | Nagios |
| United Kingdom | 33 | 7% | 19 | 8% | even |
| Germany | 26 | 6% | 34 | 14% | PRTG Network Monitor |
| France | 24 | 5% | 7 | 3% | Nagios |
| India | 18 | 4% | 6 | 2% | even |
| Canada | 14 | 3% | 11 | 5% | even |
| Italy | 13 | 3% | 5 | 2% | even |
| Spain | 8 | 2% | – | – | outside top 12 |
| Netherlands | 8 | 2% | 6 | 2% | even |
| Australia | 6 | 1% | – | – | outside top 12 |
| Poland | 5 | 1% | 4 | 2% | even |
| Sweden | 5 | 1% | – | – | outside top 12 |
| Austria | – | – | 5 | 2% | outside top 12 |
| Brazil | – | – | 5 | 2% | outside top 12 |
| Portugal | – | – | 4 | 2% | outside top 12 |
| Segment | Nagios | share | PRTG Network Monitor | share | Leans |
|---|---|---|---|---|---|
| IT operations & business systems | 914 | 53% | 504 | 75% | PRTG Network Monitor |
| Software engineering | 347 | 20% | 13 | 2% | Nagios |
| General management & consulting | 57 | 3% | – | – | outside top 12 |
| Engineering (non-software) | 47 | 3% | 14 | 2% | even |
| Customer service & success | 19 | 1% | 18 | 3% | even |
| Skilled trades and field service | 19 | 1% | 5 | 1% | even |
| Sales | 17 | 1% | 4 | 1% | even |
| Product, program & project management | 15 | 1% | 6 | 1% | even |
| Data & AI | 12 | 1% | 2 | 0% | even |
| Administration & office | 5 | 0% | 1 | 0% | even |
| Arts media and entertainment | 2 | 0% | 1 | 0% | even |
| Education & training | 1 | 0% | – | – | outside top 12 |
| Facilities cleaning and security | – | – | 1 | 0% | outside top 12 |
| Marketing & communications | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using Nagios →
Companies using PRTG Network Monitor →
metrics monitoring ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
PRTG Network Monitor is named by 244 companies in job postings and Nagios by 460; 92 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/nagios-vs-prtg-network-monitor)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
Nagios vs PRTG Network Monitor: questions
Which is more used, Nagios or PRTG Network Monitor?
By companies naming it in their own job postings, Nagios (460) over PRTG Network Monitor (244). By website-and-DNS footprint, PRTG Network Monitor (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Nagios?
48% of Nagios companies have 2 to 200 employees, against 36% for PRTG Network Monitor. 29% of Nagios companies have over 1,000 employees, against 33% for PRTG Network Monitor.
Do companies run both?
92 companies name both in their postings, usually Nagios in marketing and PRTG Network Monitor in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
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